user mode privilege mode configuration mode
enable configure terminal exit end int f0/0
quit hostname R1 no ip domain-lookup
line console 0 exec-timeout 0 0
line console 0 logging synchronous
clock timezone BJ+8 clock set 12:22:00 1 JULY 2018
show clock show ip interface brief
no shutdown ip address 12.11.1.1 255.255.255.0
show ip int brief description "connet to xxx"
show run int f0/1 duplex full speed 100
copy running-config startup-config
write dir nvram: no hostname R1
write erase reload ftp-server enable
ftp-server topdir flash:
show flash: line console 0 password 123
line vty 0 15 password 123 login
telnet 12.11.1.1 username cc password cisco
line console 0 login local
enable password 123 enable secret 123
username cc secret 123 show run